MMC Mini-Mini Collet Chuck

April 22, 2024
MMC Mini-Mini Collet Chuck Provides Accuracy in Small Diameter Cutting

Lyndex-Nikken, manufacturer and provider of high-performance machine tool accessories, offers the MMC Mini-Mini collet chuck that provides accuracy in small diameter cutting.

For manufacturers that need more clearance and flexibility in machining, the MMC Mini-Mini collet chuck features a slim and compact body for precision machining with small diameter tools (up to 0.500”). This will enable high runout accuracy with superb surface finish and part tolerance. The MMC collet chuck is ideal for high speed machining applications where clearance is needed such as die mold, aerospace, and medical parts. The MMC collet chuck is also an alternative to a shrink fit system.

An easy-to-use draw-in collet clamping mechanism (no collet nut required) results in strong, high-precision gripping from the front nose that can access hard to reach areas. Because a collet system is used, tool changeover is faster and less expensive than a toolholding system that requires a machine in order to insert or extract the cutting tool. The collet system for the MMC also allows for a wider range of sizes while with shrink fit you need a holder for each size of cutting tool.

The MMC collet chuck is precision ground and pre-balanced to 30,000 RPM at G2.5 with runout accuracy of 3 microns at 4 times the diameter – ensuring accuracy and reliability during high-speed operations.

With very few parts to set up, the MMC collet chuck provides quick and accurate assembly. Benefits of the MMC collet chuck include:

  • Easy-to-Use Collet System (no collet nut required) – internal draw-in collet clamping/unclamping with just a wrench
  • Access Hard to Reach Areas – slim and compact with strong gripping at nose
  • Accurate – 3 microns at 4 times the diameter
  • Flexible – providing both clearance and accuracy

The MMC collet chuck is also available in Taper Plus which combines taper accuracy with flange rigidity. Additionally, MMC collet chucks have coolant thru capabilities offered in a standard style coolant collet or jet slotted style collet.

Related Glossary Terms

  • chuck


    Workholding device that affixes to a mill, lathe or drill-press spindle. It holds a tool or workpiece by one end, allowing it to be rotated. May also be fitted to the machine table to hold a workpiece. Two or more adjustable jaws actually hold the tool or part. May be actuated manually, pneumatically, hydraulically or electrically. See collet.

  • clearance


    Space provided behind a tool’s land or relief to prevent rubbing and subsequent premature deterioration of the tool. See land; relief.

  • collet


    Flexible-sided device that secures a tool or workpiece. Similar in function to a chuck, but can accommodate only a narrow size range. Typically provides greater gripping force and precision than a chuck. See chuck.

  • coolant


    Fluid that reduces temperature buildup at the tool/workpiece interface during machining. Normally takes the form of a liquid such as soluble or chemical mixtures (semisynthetic, synthetic) but can be pressurized air or other gas. Because of water’s ability to absorb great quantities of heat, it is widely used as a coolant and vehicle for various cutting compounds, with the water-to-compound ratio varying with the machining task. See cutting fluid; semisynthetic cutting fluid; soluble-oil cutting fluid; synthetic cutting fluid.

  • precision machining ( precision measurement)

    precision machining ( precision measurement)

    Machining and measuring to exacting standards. Four basic considerations are: dimensions, or geometrical characteristics such as lengths, angles and diameters of which the sizes are numerically specified; limits, or the maximum and minimum sizes permissible for a specified dimension; tolerances, or the total permissible variations in size; and allowances, or the prescribed differences in dimensions between mating parts.

  • tolerance


    Minimum and maximum amount a workpiece dimension is allowed to vary from a set standard and still be acceptable.


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